Justin Bieber Performs 'Boyfriend' On 'Ellen' — PICS

Pop superstar, JUSTIN BIEBER makes an appearance on "The Ellen DeGeneres Show" onWednesday, May 23rd. Justin announces he will kick off his "Believe Tour" and gives everyone in Ellen's studio audience a pair of tickets to his show in Los Angeles. Plus, viewers can log onto ellentv.com where one pair of tickets will be given away to every show on the tour. (Courtesy of Warner Bros)

Pop superstar, JUSTIN BIEBER makes an appearance on "The Ellen DeGeneres Show" onWednesday, May 23rd. Justin announces he will kick off his "Believe Tour" and gives everyone in Ellen's studio audience a pair of tickets to his show in Los Angeles. Plus, viewers can log onto ellentv.com where one pair of tickets will be given away to every show on the tour. (Courtesy of Warner Bros)

Pop superstar, JUSTIN BIEBER makes an appearance on "The Ellen DeGeneres Show" onWednesday, May 23rd. Justin announces he will kick off his "Believe Tour" and gives everyone in Ellen's studio audience a pair of tickets to his show in Los Angeles. Plus, viewers can log onto ellentv.com where one pair of tickets will be given away to every show on the tour. (Courtesy of Warner Bros)

Pop superstar, JUSTIN BIEBER makes an appearance on "The Ellen DeGeneres Show" onWednesday, May 23rd. Justin announces he will kick off his "Believe Tour" and gives everyone in Ellen's studio audience a pair of tickets to his show in Los Angeles. Plus, viewers can log onto ellentv.com where one pair of tickets will be given away to every show on the tour. (Courtesy of Warner Bros)

Pop superstar, JUSTIN BIEBER makes an appearance on "The Ellen DeGeneres Show" onWednesday, May 23rd. Justin announces he will kick off his "Believe Tour" and gives everyone in Ellen's studio audience a pair of tickets to his show in Los Angeles. Plus, viewers can log onto ellentv.com where one pair of tickets will be given away to every show on the tour. (Courtesy of Warner Bros)

Pop superstar, JUSTIN BIEBER makes an appearance on "The Ellen DeGeneres Show" onWednesday, May 23rd. Justin announces he will kick off his "Believe Tour" and gives everyone in Ellen's studio audience a pair of tickets to his show in Los Angeles. Plus, viewers can log onto ellentv.com where one pair of tickets will be given away to every show on the tour. (Courtesy of Warner Bros)

Pop superstar, JUSTIN BIEBER makes an appearance on "The Ellen DeGeneres Show" onWednesday, May 23rd. Justin announces he will kick off his "Believe Tour" and gives everyone in Ellen's studio audience a pair of tickets to his show in Los Angeles. Plus, viewers can log onto ellentv.com where one pair of tickets will be given away to every show on the tour. (Courtesy of Warner Bros)

Pop superstar, JUSTIN BIEBER makes an appearance on "The Ellen DeGeneres Show" onWednesday, May 23rd. Justin announces he will kick off his "Believe Tour" and gives everyone in Ellen's studio audience a pair of tickets to his show in Los Angeles. Plus, viewers can log onto ellentv.com where one pair of tickets will be given away to every show on the tour. (Courtesy of Warner Bros)

Pop superstar, JUSTIN BIEBER makes an appearance on "The Ellen DeGeneres Show" onWednesday, May 23rd. Justin announces he will kick off his "Believe Tour" and gives everyone in Ellen's studio audience a pair of tickets to his show in Los Angeles. Plus, viewers can log onto ellentv.com where one pair of tickets will be given away to every show on the tour. (Courtesy of Warner Bros)

Pop superstar, JUSTIN BIEBER makes an appearance on "The Ellen DeGeneres Show" onWednesday, May 23rd. Justin announces he will kick off his "Believe Tour" and gives everyone in Ellen's studio audience a pair of tickets to his show in Los Angeles. Plus, viewers can log onto ellentv.com where one pair of tickets will be given away to every show on the tour. (Courtesy of Warner Bros)

Pop superstar, JUSTIN BIEBER makes an appearance on "The Ellen DeGeneres Show" onWednesday, May 23rd. Justin announces he will kick off his "Believe Tour" and gives everyone in Ellen's studio audience a pair of tickets to his show in Los Angeles. Plus, viewers can log onto ellentv.com where one pair of tickets will be given away to every show on the tour. (Courtesy of Warner Bros)

The 2012 Billboard Awards lit up Las Vegas on May 20, and there were so memorable moments! From Justin Bieber bringing the house down with a performance of ‘Boyfriend’ to Miley Cyrus wearing an incredibly sexy outfit, we loved seeing all of our favorite stars. Check out some the best parts of the broadcast and tell us, HollywoodLifers — what was YOUR favorite moment? (Courtesy of ABC [4])

The Wanted continued their takeover of America with a scorching live performance — we love ‘Glad You Came’! (Getty)

Chris Brown took the Top R&B Artist honor over Rihanna — what a diss to her! (FameFlynet, ABC)

Cee Lo Green and Goodie Mob sounded great performing ‘Fight To Win,’ but the real star was the one-legged dancer Jeak Sok, who is currently performing in Michael Jackson: The Immortal World Tour. (Photo by Ethan Miller/Billboards2012/Getty Images for ABC)

Natasha Bedingfield paid a touching tribute to Donna Summer with an amazing performance of ‘Last Dance’. (Photo by Ethan Miller/Billboards2012/Getty Images for ABC)

Stevie Wonder and Alicia Keys sounded incredible singing together on some of his most famous tracks — what a duo! (Photo by Kevin Mazur/WireImage)

Miley Cyrus wore one of her sexiest outfits ever — she looked incredible! (Courtesy of ABC)

Katy Perry wore white during her performance of ‘Wide Awake’ — we think it could have been a wedding dress! (Courtesy of ABC)

Justin Bieber was a hunky dancing machine during ‘Boyfriend’ — we loved it! (Courtesy of ABC)

Bobbi Kristina Brown accepted an award on behalf of her late mother Whitney Houston. (Getty)

Chris Brown danced his way through ‘Turn Up The Music’ — how does he get those moves? (Courtesy of ABC)